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===Dolby SR vs. [[Dolby A]]===
===Dolby SR vs. [[Dolby A]]===
Dolby SR is difficult to distinguish from [[Dolby A]] by sight. Here are some tips on telling them apart:
Dolby SR is difficult to distinguish from [[Dolby A]] by sight. Here are some tips on telling them apart:
* Most (but not all) films made after 1986 will have Dolby SR tracks
* Some (but not all) films made after 1986 will have Dolby SR tracks, though A-type was still in use well into the 90s (even on big budget productions like UNFORGIVEN and THE RIGHT STUFF)
* Some (but not all) films with Dolby SR tracks will display the words "Dolby SR" with the Dolby logo in the end credits
* Some (but not all) films with Dolby SR tracks will display the words "Dolby SR" with the Dolby logo in the end credits
* Some (but not all) films with Dolby SR tracks will display the words "Dolby SR" on the edges of the film [[leader]].
* Some (but not all) films with Dolby SR tracks will display the words "Dolby SR" on the edges of the film [[leader]].
* A Dolby SR track played in Dolby A will usually sound "off"
* A Dolby SR track played in Dolby A will usually sound fine, but will have more noise than you would expect from a soundtrack with Dolby Noise Reduction.


==External Links==
==External Links==

Revision as of 14:47, 21 January 2014

Dolby Spectral Recording, commonly called Dolby SR, is a four channel sound format – left, center, right and surround. It is the most common optical sound format on films made after 1986.

Dolby SR vs. Dolby A

Dolby SR is difficult to distinguish from Dolby A by sight. Here are some tips on telling them apart:

  • Some (but not all) films made after 1986 will have Dolby SR tracks, though A-type was still in use well into the 90s (even on big budget productions like UNFORGIVEN and THE RIGHT STUFF)
  • Some (but not all) films with Dolby SR tracks will display the words "Dolby SR" with the Dolby logo in the end credits
  • Some (but not all) films with Dolby SR tracks will display the words "Dolby SR" on the edges of the film leader.
  • A Dolby SR track played in Dolby A will usually sound fine, but will have more noise than you would expect from a soundtrack with Dolby Noise Reduction.

External Links